Extracting and Visualizing Stock Data
Description
Extracting essential data from a dataset and displaying it is a necessary part of data science; therefore individuals can make correct decisions based on the data. In this assignment, you will extract some stock data, you will then display this data in a graph.
Table of Contents
- Define a Function that Makes a Graph
- Question 1: Use yfinance to Extract Stock Data
- Question 2: Use Webscraping to Extract Tesla Revenue Data
- Question 3: Use yfinance to Extract Stock Data
- Question 4: Use Webscraping to Extract GME Revenue Data
- Question 5: Plot Tesla Stock Graph
- Question 6: Plot GameStop Stock Graph
Estimated Time Needed: 30 min
Note:- If you are working Locally using anaconda, please uncomment the following code and execute it.
#!pip install yfinance==0.2.38
#!pip install pandas==2.2.2
#!pip install nbformat
!pip install yfinance
!pip install bs4
!pip install nbformat
Requirement already satisfied: yfinance in /opt/conda/lib/python3.11/site-packages (0.2.41) Requirement already satisfied: pandas>=1.3.0 in /opt/conda/lib/python3.11/site-packages (from yfinance) (2.2.2) Requirement already satisfied: numpy>=1.16.5 in /opt/conda/lib/python3.11/site-packages (from yfinance) (2.0.1) Requirement already satisfied: requests>=2.31 in /opt/conda/lib/python3.11/site-packages (from yfinance) (2.31.0) Requirement already satisfied: multitasking>=0.0.7 in /opt/conda/lib/python3.11/site-packages (from yfinance) (0.0.11) Requirement already satisfied: lxml>=4.9.1 in /opt/conda/lib/python3.11/site-packages (from yfinance) (5.2.2) Requirement already satisfied: platformdirs>=2.0.0 in /opt/conda/lib/python3.11/site-packages (from yfinance) (4.2.1) Requirement already satisfied: pytz>=2022.5 in /opt/conda/lib/python3.11/site-packages (from yfinance) (2024.1) Requirement already satisfied: frozendict>=2.3.4 in /opt/conda/lib/python3.11/site-packages (from yfinance) (2.4.4) Requirement already satisfied: peewee>=3.16.2 in /opt/conda/lib/python3.11/site-packages (from yfinance) (3.17.6) Requirement already satisfied: beautifulsoup4>=4.11.1 in /opt/conda/lib/python3.11/site-packages (from yfinance) (4.12.3) Requirement already satisfied: html5lib>=1.1 in /opt/conda/lib/python3.11/site-packages (from yfinance) (1.1) Requirement already satisfied: soupsieve>1.2 in /opt/conda/lib/python3.11/site-packages (from beautifulsoup4>=4.11.1->yfinance) (2.5) Requirement already satisfied: six>=1.9 in /opt/conda/lib/python3.11/site-packages (from html5lib>=1.1->yfinance) (1.16.0) Requirement already satisfied: webencodings in /opt/conda/lib/python3.11/site-packages (from html5lib>=1.1->yfinance) (0.5.1) Requirement already satisfied: python-dateutil>=2.8.2 in /opt/conda/lib/python3.11/site-packages (from pandas>=1.3.0->yfinance) (2.9.0) Requirement already satisfied: tzdata>=2022.7 in /opt/conda/lib/python3.11/site-packages (from pandas>=1.3.0->yfinance) (2024.1) Requirement already satisfied: charset-normalizer<4,>=2 in /opt/conda/lib/python3.11/site-packages (from requests>=2.31->yfinance) (3.3.2) Requirement already satisfied: idna<4,>=2.5 in /opt/conda/lib/python3.11/site-packages (from requests>=2.31->yfinance) (3.7) Requirement already satisfied: urllib3<3,>=1.21.1 in /opt/conda/lib/python3.11/site-packages (from requests>=2.31->yfinance) (2.2.1) Requirement already satisfied: certifi>=2017.4.17 in /opt/conda/lib/python3.11/site-packages (from requests>=2.31->yfinance) (2024.6.2) Requirement already satisfied: bs4 in /opt/conda/lib/python3.11/site-packages (0.0.2) Requirement already satisfied: beautifulsoup4 in /opt/conda/lib/python3.11/site-packages (from bs4) (4.12.3) Requirement already satisfied: soupsieve>1.2 in /opt/conda/lib/python3.11/site-packages (from beautifulsoup4->bs4) (2.5) Requirement already satisfied: nbformat in /opt/conda/lib/python3.11/site-packages (5.10.4) Requirement already satisfied: fastjsonschema>=2.15 in /opt/conda/lib/python3.11/site-packages (from nbformat) (2.19.1) Requirement already satisfied: jsonschema>=2.6 in /opt/conda/lib/python3.11/site-packages (from nbformat) (4.22.0) Requirement already satisfied: jupyter-core!=5.0.*,>=4.12 in /opt/conda/lib/python3.11/site-packages (from nbformat) (5.7.2) Requirement already satisfied: traitlets>=5.1 in /opt/conda/lib/python3.11/site-packages (from nbformat) (5.14.3) Requirement already satisfied: attrs>=22.2.0 in /opt/conda/lib/python3.11/site-packages (from jsonschema>=2.6->nbformat) (23.2.0) Requirement already satisfied: jsonschema-specifications>=2023.03.6 in /opt/conda/lib/python3.11/site-packages (from jsonschema>=2.6->nbformat) (2023.12.1) Requirement already satisfied: referencing>=0.28.4 in /opt/conda/lib/python3.11/site-packages (from jsonschema>=2.6->nbformat) (0.35.1) Requirement already satisfied: rpds-py>=0.7.1 in /opt/conda/lib/python3.11/site-packages (from jsonschema>=2.6->nbformat) (0.18.0) Requirement already satisfied: platformdirs>=2.5 in /opt/conda/lib/python3.11/site-packages (from jupyter-core!=5.0.*,>=4.12->nbformat) (4.2.1)
import yfinance as yf
import pandas as pd
import requests
from bs4 import BeautifulSoup
import plotly.graph_objects as go
from plotly.subplots import make_subplots
In Python, you can ignore warnings using the warnings module. You can use the filterwarnings function to filter or ignore specific warning messages or categories.
import warnings
# Ignore all warnings
warnings.filterwarnings("ignore", category=FutureWarning)
Define Graphing Function¶
In this section, we define the function make_graph. You don't have to know how the function works, you should only care about the inputs. It takes a dataframe with stock data (dataframe must contain Date and Close columns), a dataframe with revenue data (dataframe must contain Date and Revenue columns), and the name of the stock.
def make_graph(stock_data, revenue_data, stock):
fig = make_subplots(rows=2, cols=1, shared_xaxes=True, subplot_titles=("Historical Share Price", "Historical Revenue"), vertical_spacing = .3)
stock_data_specific = stock_data[stock_data.Date <= '2021--06-14']
revenue_data_specific = revenue_data[revenue_data.Date <= '2021-04-30']
fig.add_trace(go.Scatter(x=pd.to_datetime(stock_data_specific.Date), y=stock_data_specific.Close.astype("float"), name="Share Price"), row=1, col=1)
fig.add_trace(go.Scatter(x=pd.to_datetime(revenue_data_specific.Date), y=revenue_data_specific.Revenue.astype("float"), name="Revenue"), row=2, col=1)
fig.update_xaxes(title_text="Date", row=1, col=1)
fig.update_xaxes(title_text="Date", row=2, col=1)
fig.update_yaxes(title_text="Price ($US)", row=1, col=1)
fig.update_yaxes(title_text="Revenue ($US Millions)", row=2, col=1)
fig.update_layout(showlegend=False,
height=900,
title=stock,
xaxis_rangeslider_visible=True)
fig.show()
Use the make_graph function that we’ve already defined. You’ll need to invoke it in questions 5 and 6 to display the graphs and create the dashboard.
Note: You don’t need to redefine the function for plotting graphs anywhere else in this notebook; just use the existing function.
Question 1: Use yfinance to Extract Stock Data¶
Using the Ticker function enter the ticker symbol of the stock we want to extract data on to create a ticker object. The stock is Tesla and its ticker symbol is TSLA.
tesla = yf.Ticker('TSLA')
Using the ticker object and the function history extract stock information and save it in a dataframe named tesla_data. Set the period parameter to "max" so we get information for the maximum amount of time.
tesla_data = tesla.history(period="max")
Reset the index using the reset_index(inplace=True) function on the tesla_data DataFrame and display the first five rows of the tesla_data dataframe using the head function. Take a screenshot of the results and code from the beginning of Question 1 to the results below.
tesla_data.reset_index(inplace=True)
tesla_data.head(5)
| Date | Open | High | Low | Close | Volume | Dividends | Stock Splits | |
|---|---|---|---|---|---|---|---|---|
| 0 | 2010-06-29 00:00:00-04:00 | 1.266667 | 1.666667 | 1.169333 | 1.592667 | 281494500 | 0.0 | 0.0 |
| 1 | 2010-06-30 00:00:00-04:00 | 1.719333 | 2.028000 | 1.553333 | 1.588667 | 257806500 | 0.0 | 0.0 |
| 2 | 2010-07-01 00:00:00-04:00 | 1.666667 | 1.728000 | 1.351333 | 1.464000 | 123282000 | 0.0 | 0.0 |
| 3 | 2010-07-02 00:00:00-04:00 | 1.533333 | 1.540000 | 1.247333 | 1.280000 | 77097000 | 0.0 | 0.0 |
| 4 | 2010-07-06 00:00:00-04:00 | 1.333333 | 1.333333 | 1.055333 | 1.074000 | 103003500 | 0.0 | 0.0 |
Question 2: Use Webscraping to Extract Tesla Revenue Data¶
Use the requests library to download the webpage https://cf-courses-data.s3.us.cloud-object-storage.appdomain.cloud/IBMDeveloperSkillsNetwork-PY0220EN-SkillsNetwork/labs/project/revenue.htm Save the text of the response as a variable named html_data.
url = "https://cf-courses-data.s3.us.cloud-object-storage.appdomain.cloud/IBMDeveloperSkillsNetwork-PY0220EN-SkillsNetwork/labs/project/revenue.htm"
html_data = requests.get(url).text
Parse the html data using beautiful_soup using parser i.e html5lib or html.parser. Make sure to use the html_data with the content parameter as follow html_data.content .
soup = BeautifulSoup(html_data,"html.parser") # create a soup object using the variable 'data'
for link in soup.find_all('a',href=True): # in html anchor/link is represented by the tag <a>
print(link.get('href'))
https://www.macrotrends.net /stocks/stock-screener /stocks/research /charts/stock-indexes /charts/precious-metals /charts/energy /charts/commodities /charts/exchange-rates /charts/interest-rates /charts/economy /countries/topic-overview https://www.macrotrends.net/stocks/charts/TSLA/tesla/stock-price-history https://www.macrotrends.net/stocks/charts/TSLA/tesla/financial-statements https://www.macrotrends.net/stocks/charts/TSLA/tesla/revenue https://www.macrotrends.net/stocks/charts/TSLA/tesla/total-assets https://www.macrotrends.net/stocks/charts/TSLA/tesla/profit-margins https://www.macrotrends.net/stocks/charts/TSLA/tesla/pe-ratio https://www.macrotrends.net/stocks/charts/TSLA/tesla/current-ratio https://www.macrotrends.net/stocks/charts/TSLA/tesla/dividend-yield-history https://www.macrotrends.net/stocks/charts/TSLA/tesla/revenue https://www.macrotrends.net/stocks/charts/TSLA/tesla/gross-profit https://www.macrotrends.net/stocks/charts/TSLA/tesla/operating-income https://www.macrotrends.net/stocks/charts/TSLA/tesla/ebitda https://www.macrotrends.net/stocks/charts/TSLA/tesla/net-income https://www.macrotrends.net/stocks/charts/TSLA/tesla/eps-earnings-per-share-diluted https://www.macrotrends.net/stocks/charts/TSLA/tesla/shares-outstanding https://www.macrotrends.net/stocks/sector/5/auto-tires-trucks https://www.macrotrends.net/stocks/industry/7/ /stocks/charts/GM/general-motors/revenue /stocks/charts/F/ford-motor/revenue /stocks/charts/HOG/harley-davidson/revenue /stocks/charts/PII/polaris/revenue /stocks/charts/IAA/iaa/revenue /stocks/charts/FSR/fisker/revenue /stocks/charts/LEV/lion-electric/revenue /stocks/charts/VLTA/volta/revenue /stocks/charts/BRDS/bird-global/revenue /stocks/charts/ZEV/lightning-emotors/revenue /terms /privacy mailto:%69n%66o@%6Dac%72otrends%2En%65t /ccpa https://www.zacksdata.com
Using BeautifulSoup or the read_html function extract the table with Tesla Revenue and store it into a dataframe named tesla_revenue. The dataframe should have columns Date and Revenue.
Step-by-step instructions
Here are the step-by-step instructions:
1. Find All Tables: Start by searching for all HTML tables on a webpage using `soup.find_all('table')`.
2. Identify the Relevant Table: then loops through each table. If a table contains the text “Tesla Quarterly Revenue,”, select that table.
3. Initialize a DataFrame: Create an empty Pandas DataFrame called `tesla_revenue` with columns “Date” and “Revenue.”
4. Loop Through Rows: For each row in the relevant table, extract the data from the first and second columns (date and revenue).
5. Clean Revenue Data: Remove dollar signs and commas from the revenue value.
6. Add Rows to DataFrame: Create a new row in the DataFrame with the extracted date and cleaned revenue values.
7. Repeat for All Rows: Continue this process for all rows in the table.
Click here if you need help locating the table
Below is the code to isolate the table, you will now need to loop through the rows and columns like in the previous lab
soup.find_all("tbody")[1]
If you want to use the read_html function the table is located at index 1
We are focusing on quarterly revenue in the lab.
> Note: Instead of using the deprecated pd.append() method, consider using pd.concat([df, pd.DataFrame], ignore_index=True).
#We create an empty dataframe
tesla_revenue = pd.DataFrame(columns=["Date", "Revenue"])
#We extract the desired data from the 'soup' object and save it in the dataframe
for row in soup.find_all("tbody")[1]:
col = row.find_all("td")
date = col[0].text
revenue = col[1].text
tesla_revenue = pd.concat([df, pd.DataFrame], ignore_index=True)
--------------------------------------------------------------------------- AttributeError Traceback (most recent call last) Cell In[11], line 6 4 #We extract the desired data from the 'soup' object and save it in the dataframe 5 for row in soup.find_all("tbody")[1]: ----> 6 col = row.find_all("td") 7 date = col[0].text 8 revenue = col[1].text File /opt/conda/lib/python3.11/site-packages/bs4/element.py:984, in NavigableString.__getattr__(self, attr) 982 return self 983 else: --> 984 raise AttributeError( 985 "'%s' object has no attribute '%s'" % ( 986 self.__class__.__name__, attr)) AttributeError: 'NavigableString' object has no attribute 'find_all'
Execute the following line to remove the comma and dollar sign from the Revenue column.
tesla_revenue["Revenue"] = tesla_revenue['Revenue'].str.replace(',|\$',"", regex=True)
Execute the following lines to remove an null or empty strings in the Revenue column.
tesla_revenue.dropna(inplace=True)
tesla_revenue = tesla_revenue[tesla_revenue['Revenue'] != ""]
Display the last 5 row of the tesla_revenue dataframe using the tail function. Take a screenshot of the results.
tesla_revenue.tail()
| Date | Revenue |
|---|
Question 3: Use yfinance to Extract Stock Data¶
Using the Ticker function enter the ticker symbol of the stock we want to extract data on to create a ticker object. The stock is GameStop and its ticker symbol is GME.
GameStop = yf.Ticker("GME")
Using the ticker object and the function history extract stock information and save it in a dataframe named gme_data. Set the period parameter to "max" so we get information for the maximum amount of time.
gme_data = GameStop.history(period = 'max')
Reset the index using the reset_index(inplace=True) function on the gme_data DataFrame and display the first five rows of the gme_data dataframe using the head function. Take a screenshot of the results and code from the beginning of Question 3 to the results below.
gme_data.reset_index(inplace = True)
gme_data.head()
| Date | Open | High | Low | Close | Volume | Dividends | Stock Splits | |
|---|---|---|---|---|---|---|---|---|
| 0 | 2002-02-13 00:00:00-05:00 | 1.620128 | 1.693350 | 1.603296 | 1.691666 | 76216000 | 0.0 | 0.0 |
| 1 | 2002-02-14 00:00:00-05:00 | 1.712707 | 1.716074 | 1.670626 | 1.683251 | 11021600 | 0.0 | 0.0 |
| 2 | 2002-02-15 00:00:00-05:00 | 1.683251 | 1.687459 | 1.658002 | 1.674834 | 8389600 | 0.0 | 0.0 |
| 3 | 2002-02-19 00:00:00-05:00 | 1.666418 | 1.666418 | 1.578047 | 1.607504 | 7410400 | 0.0 | 0.0 |
| 4 | 2002-02-20 00:00:00-05:00 | 1.615921 | 1.662210 | 1.603296 | 1.662210 | 6892800 | 0.0 | 0.0 |
Question 4: Use Webscraping to Extract GME Revenue Data¶
Use the requests library to download the webpage https://cf-courses-data.s3.us.cloud-object-storage.appdomain.cloud/IBMDeveloperSkillsNetwork-PY0220EN-SkillsNetwork/labs/project/stock.html. Save the text of the response as a variable named html_data_2.
url = "https://cf-courses-data.s3.us.cloud-object-storage.appdomain.cloud/IBMDeveloperSkillsNetwork-PY0220EN-SkillsNetwork/labs/project/stock.html"
html_data_2 = requests.get(url).text
Parse the html data using beautiful_soup using parser i.e html5lib or html.parser.
soup = BeautifulSoup(html_data_2,"html.parser")
Using BeautifulSoup or the read_html function extract the table with GameStop Revenue and store it into a dataframe named gme_revenue. The dataframe should have columns Date and Revenue. Make sure the comma and dollar sign is removed from the Revenue column.
Note: Use the method similar to what you did in question 2.
Click here if you need help locating the table
Below is the code to isolate the table, you will now need to loop through the rows and columns like in the previous lab
soup.find_all("tbody")[1]
If you want to use the read_html function the table is located at index 1
gme_revenue = pd.DataFrame(columns=['Date', 'Revenue'])
for table in soup.find_all('table'):
if ('GameStop Quarterly Revenue' in table.find('th').text):
rows = table.find_all('tr')
for row in rows:
col = row.find_all('td')
if col != []:
date = col[0].text
revenue = col[1].text.replace(',','').replace('$','')
gme_revenue = gme_revenue.append({"Date":date, "Revenue":revenue}, ignore_index=True)
--------------------------------------------------------------------------- AttributeError Traceback (most recent call last) /tmp/ipykernel_884/326897550.py in ?() 11 if col != []: 12 date = col[0].text 13 revenue = col[1].text.replace(',','').replace('$','') 14 ---> 15 gme_revenue = gme_revenue.append({"Date":date, "Revenue":revenue}, ignore_index=True) /opt/conda/lib/python3.11/site-packages/pandas/core/generic.py in ?(self, name) 6295 and name not in self._accessors 6296 and self._info_axis._can_hold_identifiers_and_holds_name(name) 6297 ): 6298 return self[name] -> 6299 return object.__getattribute__(self, name) AttributeError: 'DataFrame' object has no attribute 'append'
Display the last five rows of the gme_revenue dataframe using the tail function. Take a screenshot of the results.
gme_revenue.tail(5)
| Date | Revenue |
|---|
Question 5: Plot Tesla Stock Graph¶
Use the make_graph function to graph the Tesla Stock Data, also provide a title for the graph. Note the graph will only show data upto June 2021.
Hint
You just need to invoke the make_graph function with the required parameter to print the graphs.The structure to call the `make_graph` function is `make_graph(tesla_data, tesla_revenue, 'Tesla')`.
make_graph(tesla_data, tesla_revenue, 'Tesla')
Question 6: Plot GameStop Stock Graph¶
Use the make_graph function to graph the GameStop Stock Data, also provide a title for the graph. The structure to call the make_graph function is make_graph(gme_data, gme_revenue, 'GameStop'). Note the graph will only show data upto June 2021.
Hint
You just need to invoke the make_graph function with the required parameter to print the graphs.The structure to call the `make_graph` function is `make_graph(gme_data, gme_revenue, 'GameStop')`
make_graph(gme_data, gme_revenue, 'GameStop')
About the Authors:
Joseph Santarcangelo has a PhD in Electrical Engineering, his research focused on using machine learning, signal processing, and computer vision to determine how videos impact human cognition. Joseph has been working for IBM since he completed his PhD.
© IBM Corporation 2020. All rights reserved.
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